Folic AcidIronFolic Acid DeficiencyIron Chelating AgentsNeural Tube DefectsFood, FortifiedTetrahydrofolatesDietary SupplementsHomocysteineVitamin B 12Iron, DietaryVitamin B ComplexFolic Acid AntagonistsIron OverloadPreconception CareFolate Receptors, GPI-AnchoredHyperhomocysteinemiaHematinicsAnemia, MacrocyticIron IsotopesIron CompoundsIron RadioisotopesFerritinsVitamin B 6Anemia, Iron-DeficiencyPteroylpolyglutamic AcidsVitamin B 12 DeficiencyPregnancyFolic Acid TransportersBreadVitaminsPrenatal CareFlourFerric CompoundsFolate Receptor 1Methylenetetrahydrofolate Reductase (NADPH2)Ferrous CompoundsTransferrinDouble-Blind MethodPrenatal Nutritional Physiological PhenomenaFormyltetrahydrofolatesIron Regulatory Protein 1HemoglobinsBiological AvailabilitySpinal DysraphismMicronutrientsAminopterinIron Metabolism DisordersCerealsNutritional RequirementsPterinsReduced Folate Carrier ProteinNutritional StatusPyridoxineFIGLU TestAnemia, HypochromicIron Regulatory Protein 2ErythrocytesDietNutrition PolicyMethotrexateIntestinal AbsorptionAnencephalyDeferoxamineHomocystineMethylmalonic AcidRiboflavinPregnancy Complications, Hematologic4-Aminobenzoic AcidAnemiaMaternal Nutritional Physiological PhenomenaZincSiderophoresReceptors, TransferrinGlutamatesHepcidinsIron-Dextran ComplexAnemia, MegaloblasticHemochromatosisCleft PalateMethionineNonheme Iron ProteinsPlacebosAdministration, OralVitamin B DeficiencyAnemia, PerniciousPregnancy ComplicationsOxidoreductases Acting on CH-NH Group DonorsDose-Response Relationship, DrugIron-Binding ProteinsInfant, Newborngamma-Glutamyl HydrolaseCleft LipNepalLiverKB CellsIrelandCation Transport ProteinsAbsorptionTrimetrexate